Mysterious Treasure on Oak Island : Documentary

This very intriguing documentary focuses on an elaborate system of drains and filters designed into a deep pit dug hundreds of years ago on an island in Nova Scotia called Oak Island. The purpose of the pit has yet to be discovered though many people over the years have tried and failed. The so called Money Pit has claimed six lives so far attempting to find not only any treasure which may exist, but to solve the mysterious puzzle of who dug the pit and why.